Fortnite

The Intel Core i5-10400F paired with the NVIDIA GeForce RTX 4090 produces a remarkably consistent Fortnite experience, though the combination reveals a clear CPU bottleneck at lower resolutions. The data shows that while the RTX 4090 is capable of massive frame rates, the i5-10400F holds the system back from fully saturating the GPU in less demanding settings, resulting in a combo that ranks 114th out of 1564 tested configurations. This pairing delivers playable-to-competitive performance across all tested presets, with the most balanced experience found at 1440p High settings, where the system achieves 164.5 FPS.

FAQ

Q: What is the best resolution and settings combination for this system?

A: The most balanced experience is at 2560x1440 with High settings, delivering 164.5 FPS. This provides a strong frame rate while maintaining visual quality, and it avoids the extreme CPU bottleneck seen at 1080p.

Q: How does the RTX 4090 perform in Fortnite with this CPU?

A: The RTX 4090 shows its power by pushing 305 FPS at 1080p Low settings, but the i5-10400F limits higher frame rates. The GPU's performance is better utilized at higher resolutions like 4K, where it still manages 89.7 FPS on High settings.

Q: Is the CPU or GPU the limiting factor in this combo?

A: At 1080p, the CPU is the primary limiter, as frame rates plateau around 305 FPS even on Low settings. At 4K Ultra, the GPU becomes the bottleneck, dropping to 56.4 FPS, showing the balance shifts with resolution.

Q: What is the playable frame rate at 4K resolution?

A: At 3840x2160, the system achieves 159.6 FPS on Low, 111 FPS on Medium, 89.7 FPS on High, and 56.4 FPS on Ultra. The High preset is playable, but Ultra may require adjustments for smoother gameplay.

Q: How does this combo rank against all other tested systems in Fortnite?

A: This configuration ranks 114th out of 1564 tested combos, placing it in the top 7% of all tested systems. This indicates strong overall performance, though the CPU's age prevents it from reaching the top tier.

Q: What is the frame rate difference between Low and Ultra settings at 1440p?

A: At 2560x1440, Low settings yield 261.3 FPS, while Ultra drops to 108.4 FPS. This represents a 152.9 FPS difference, showing the significant impact of graphical presets on performance.

GPU Role

The NVIDIA GeForce RTX 4090 is the dominant component in this pairing, bringing 24 GB of GDDR6X memory and a 384-bit memory bus with 1.01 TB/s bandwidth to Fortnite. Its base clock of 2235 MHz and boost clock of 2520 MHz, combined with 16384 shading units, provide the raw compute power needed for high frame rates. The GPU's 82.58 TFLOPS of FP32 performance is substantial, but Fortnite's engine does not fully leverage this capability at lower settings due to the CPU bottleneck.

The RTX 4090's memory configuration is overkill for Fortnite, as the game rarely needs more than a few gigabytes, but it ensures zero memory-related stutters. The 128 RT cores and 512 tensor cores are present but underutilized in this title, which relies more on pure rasterization. The data shows the GPU's strength is most evident at 4K Ultra, where it still produces 56.4 FPS, proof of its raw power even when the CPU is overwhelmed.

Settings Recommendations

For competitive play, the 1080p Low preset at 305 FPS is the standout choice, though the frame rate is capped by the CPU rather than the GPU. At 1440p, the Low preset delivers 261.3 FPS, which is still excellent for high-refresh-rate monitors. The Medium preset at 1440p offers 212.9 FPS, striking a good balance between visibility and performance.

For a more visually rich experience, the High preset at 1440p provides 164.5 FPS, which is ideal for most gaming setups. The Ultra preset at 1440p drops to 108.4 FPS, which is playable but not ideal for competitive play. At 4K, the High preset at 89.7 FPS is the best compromise, while Ultra at 56.4 FPS is only suitable for slower-paced play. The Medium preset at 4K (111 FPS) offers a surprising sweet spot for high-resolution gaming.

Measured FPS Breakdown

At 1920x1080, the system achieves 305 FPS on Low, 267.7 FPS on Medium, 244.4 FPS on High, and 170.2 FPS on Ultra. The small gap between Low and High (60.6 FPS) indicates the CPU is limiting performance, as the GPU should easily handle these settings. The Ultra preset's 170.2 FPS is still very high, but the incremental gains from lowering settings diminish as the CPU bottleneck dominates.

At 2560x1440, the frame rates are 261.3 FPS on Low, 212.9 FPS on Medium, 164.5 FPS on High, and 108.4 FPS on Ultra. The drop from Low to Ultra is 152.9 FPS, showing a more pronounced GPU influence at this resolution. The High preset's 164.5 FPS is a solid target for most users, offering a good balance of visual quality and responsiveness.

At 3840x2160, the system produces 159.6 FPS on Low, 111 FPS on Medium, 89.7 FPS on High, and 56.4 FPS on Ultra. The 4K results show a dramatic scaling with settings, as the GPU becomes the primary bottleneck. The Low preset's 159.6 FPS is impressive for 4K, but the Ultra preset's 56.4 FPS highlights the extreme demands of this resolution.

How This Combo Ranks

This Intel Core i5-10400F and NVIDIA GeForce RTX 4090 combination ranks 114th out of 1564 tested systems for Fortnite, placing it in the top 7.3% of all configurations. This ranking reflects the RTX 4090's massive GPU power, but it is held back by the i5-10400F's performance ceiling. The CPU's 73rd percentile ranking among all CPUs contrasts with the GPU's 91st percentile, showing a clear mismatch in capability.

The combo's position is respectable, but it is far from the top 10, where newer, higher-core-count CPUs would allow the RTX 4090 to stretch its legs. The data indicates that this pairing is better suited for high-resolution gaming, where the GPU's strengths are more fully utilized. In Fortnite specifically, the 114th rank suggests that many systems with superior CPUs achieve higher frame rates, even with less powerful GPUs.

CPU Role

The Intel Core i5-10400F provides 6 cores and 12 threads, with a base clock of 2.90 GHz and a boost clock of 4.30 GHz. Its 12 MB of shared L3 cache and 42.7 GB/s memory bandwidth are adequate for Fortnite, but the CPU's overall benchmark scores reveal its limitations. The Cinebench R23 multicore score of 10297 and single-core score of 1453 are modest by modern standards, and the CPU's 73rd percentile ranking shows it is a mid-tier processor.

In Fortnite, the CPU's role is critical at lower resolutions and settings, where it becomes the bottleneck. The data shows that at 1080p Low, the system only achieves 305 FPS, which is likely near the CPU's maximum frame rate capability. The CPU's 3DMark scores, including a single-thread score of 688 and a 16-thread score of 4748, indicate it can handle the game's physics and draw calls, but it cannot feed the RTX 4090 fast enough to reach higher frame rates.

Resolution Scaling

The frame rate scaling from 1080p to 4K shows distinct patterns that reveal the limiting component. At Low settings, the system goes from 305 FPS at 1080p to 159.6 FPS at 4K, a 47.7% drop. This suggests the GPU is still somewhat capable at 4K, but the CPU's bottleneck at 1080p prevents higher frame rates. At High settings, the drop is from 244.4 FPS at 1080p to 89.7 FPS at 4K, a 63.3% decrease, showing the GPU's load increasing significantly.

The Ultra preset shows the most dramatic scaling, from 170.2 FPS at 1080p to 56.4 FPS at 4K, an 66.9% reduction. This indicates that at Ultra settings, the GPU is the primary limiter, as the CPU has enough headroom to handle the increased graphical load. The data suggests that the system is CPU-bound at 1080p and GPU-bound at 4K Ultra, with the crossover point around 1440p where both components share the workload.